EP 0817532 A3 19981223 - Induction heating apparatus
Title (en)
Induction heating apparatus
Title (de)
Apparat zum induktiven Erhitzen
Title (fr)
Appareil de chauffage par induction
Publication
Application
Priority
- EP 92924765 A 19921130
- GB 9125650 A 19911203
Abstract (en)
[origin: GB2262420A] Induction heating apparatus for heating an elongate metal workpiece of predetermined width has means to generate time varying magnetic fields which produce longitudinal eddy current distributions across the width of the workpiece having cosine and sine profiles. The amplitude of these profiles is not necessarily uniform across the width of the workpiece and the spatial period of these profiles across the workpiece width are chosen to ensure that the line integral across the workpiece of the eddy currents is zero. In this way a desired heating profile across the width of the workpiece can be maintained.
IPC 1-7
IPC 8 full level
H05B 6/10 (2006.01); F27D 99/00 (2010.01); H05B 6/02 (2006.01); H05B 6/36 (2006.01); H05B 6/40 (2006.01)
CPC (source: EP US)
F27D 99/0006 (2013.01 - EP US); H05B 6/365 (2013.01 - EP US); H05B 6/40 (2013.01 - EP US); F27D 2099/0016 (2013.01 - EP US)
Citation (search report)
- [A] DE 921400 C 19541216 - SIEMENS AG, et al
- [A] US 4122321 A 19781024 - CACHAT JOHN F
- [A] GB 712066 A 19540714 - ASEA AB
- [A] FR 2538665 A1 19840629 - CEM COMP ELECTRO MEC [FR]
- [A] US 4484048 A 19841120 - TRAVERS ROGER [FR], et al
- [A] US 2902572 A 19590901 - LACKNER ROBERT V, et al
- [A] WO 9103916 A1 19910321 - JUNKER GMBH O [DE]
Designated contracting state (EPC)
BE DE ES FR IT NL
DOCDB simple family (publication)
GB 2262420 A 19930616; GB 2262420 B 19950208; GB 9125650 D0 19920129; AU 3088992 A 19930628; DE 69225236 D1 19980528; DE 69225236 T2 19980813; EP 0615677 A1 19940921; EP 0615677 B1 19980422; EP 0817532 A2 19980107; EP 0817532 A3 19981223; JP H07501647 A 19950216; US 5510600 A 19960423; WO 9311650 A1 19930610
DOCDB simple family (application)
GB 9125650 A 19911203; AU 3088992 A 19921130; DE 69225236 T 19921130; EP 92924765 A 19921130; EP 97202929 A 19921130; GB 9202212 W 19921130; JP 50995093 A 19921130; US 24441994 A 19940525